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2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 6 SELF DIAGNOSIS
6-17 T
E240
0000 A fault occurs in communication between the CPU of the main controller
PCB and the CPU of the DC controller PCB.
Main cause The main controller PCB is faulty. The DC controller PCB is faulty.
Action
1. Wiring Is the wiring from the min controller PCB to the DC controller PCB nor-
mal?
NO: Correct the wiring.
2. DC controller PCB, Main controlled PCB
Try replacing the DC controller PCB. Is the problem corrected?
YES: End.
NO: Replace the main controller PCB.
E243
0000 A fault occurs in the communication between the CPU of the control panel
PCB and the CPU of the main controller PCB.
Main cause The control panel CPU PCB is faulty. The main controller PCB is faulty.
Action
1. Wiring Is the wiring from the main controller PCB to the DC controller PCB nor-
mal?
NO: Correct the wiring.
2. Control panel CPU PCB, Main controller PCB
Try replacing the control panel CPU PCB. Is the problem corrected?
YES: End.
NO: Replace the main controller PCB.